Keithley 2280 Series Reference Manual

Series 2280 Precision DC Power Supply Reference Manual Appendix C: Calibration and adjustment
077085503 / March 2019 C-11
Voltage calibration
Connect the instrument to a digital multimeter (DMM). For details, see Voltage calibration connection
(on page C-7).
You must input the measured value from the DMM. The value should be within the expected range.
A message will indicate if the DMM data entry was out of the expected range. Verify that the proper
shunt value was used or that the cables are properly connected.
For Model 2280S-32-6, the expected values are shown in the following table.
Steps
Maximum voltage
Minimum voltage
1
0.55 V
0.05 V
2
32 V
28 V
For Model 2280S-60-3, the expected values are shown in the following table.
Steps
Maximum voltage
Minimum voltage
1
1.15 V
0.05 V
2
58.25 V
54.25 V
Step 1
1. Enter the measured result from the DMM.
2. After entering the data, the waiting window is displayed. You need to wait a few seconds for the
internal measurements and calculations. The step 2 calibration window is displayed.
Step 2
1. Enter the measured result from the DMM.
2. After entering the data, the waiting window is displayed. You need to wait a few seconds for the
internal measurements and calculations. Then the Save window is displayed.
3. You can save the calibration results or continue to the next calibration step. For the details on
saving, see Saving calibration constants from the front panel (on page C-15). If you want to
continue the calibration, press the Next soft key.
After each calibration step, the Series 2280 output is set to a safe low-voltage level, preventing
inadvertent harm to the user, instrument, or load.

Keithley 2280 Series Specifications

General

Brand	Keithley
Model	2280 Series
Category	Power Supply
Language	English